As suppliers of passive fire protection we often fall into the trap into thinking that everyone knows as much as us about intumescent strips. Obviously this is not the case,
The term ‘fire door’ usually refers to a fire door leaf, the main component of a fire door assembly or doorset.
The door leaf is installed into a fire-rated frame, complete with its ‘essential ironmongery’ to make the door perform correctly in the event of a fire.
The door is tested as a complete assembly or doorset, and can only work correctly if installed using the same compatible components as when it was tested.